Ok, i read several posts about "how to integrate Unity webplayer in Facebook" so i messed around with it myself and found out how to do it. Actually it is very easy. Be aware that this post has nothing to do with advanced Facebook integration with Unity app like inviting, posting to the wall and similar. It's a simple step by step tutorial to put your game on the Facebook. 1. Build your game for webplayer and upload it to Dropbox. 2. Go to developers.facebook.com -> Apps -> +Create new app 3. Fill the needed stuff like the game's name, your email, game genre etc. 4. Go to your Dropbox folder and Copy the public link of your *.html file in webplayer folder 5. Back to Facebook, select "App on Facebook" and under the "Canvas URL" paste the link from dropbox you just copied and add "?fake=0" without quotes. The link will look something like this: ...webplayer.html?fake=0 6. Save changes and wait for couple of minutes. 7. Go to your game Facebook site and hit Play Game (if you dont see that button wait for few more minutes) and that's it. It should run just fine.